One deep or two best for brood nest. Maybe one deep and a super?
Both will work, here we normally go with two deep, one's they filled both, honey super on top over queen excluder.
Not sure what you meant with one deep and a super, super is usually called a honey super,...above the brood.
See what is common is your region.
Here, heaving two brood chambers and not touching the honey going into winter is a good insurance that bees have enough food for the winter, from September until mid April.
I meant putting a honey super on top of the deep then a queen excluder then the second super for honey. This would make the brood chamber one deep and one super. Here in Texas I think one deep is brood nest may be enough.The super was just a question, do I need it in zone 9.